Date: Fri, 16 Sep 94 18:00:20 PDT From: Info-Hams Mailing List and Newsgroup Errors-To: Info-Hams-Errors@UCSD.Edu Reply-To: Info-Hams@UCSD.Edu Precedence: Bulk Subject: Info-Hams Digest V94 #1031 To: Info-Hams Info-Hams Digest Fri, 16 Sep 94 Volume 94 : Issue 1031 Today's Topics: (Getting long) Re: A Repeater on 147.555?!? (2 msgs) ARLD057 DX news CO0FRC Coax Fittings FT-1000 Controller (2 msgs) GB2VK..Special Event HPM Lesson? IPS Daily Report - 16 September 94 Looking for the best DSP filter for HF? My license is granted Radio History SAREX Update & Keps 9/16 Western CT. Hamfest 18 SEP 94 Send Replies or notes for publication to: Send subscription requests to: Problems you can't solve otherwise to brian@ucsd.edu. Archives of past issues of the Info-Hams Digest are available (by FTP only) from UCSD.Edu in directory "mailarchives/info-hams". We trust that readers are intelligent enough to realize that all text herein consists of personal comments and does not represent the official policies or positions of any party. Your mileage may vary. So there. ---------------------------------------------------------------------- Date: Thu, 15 Sep 94 20:43:53 -0400 From: psinntp!news.worldlink.com!usenet@uunet.uu.net Subject: (Getting long) Re: A Repeater on 147.555?!? To: info-hams@ucsd.edu >DATE: 14 Sep 1994 07:29:58 GMT >FROM: Gary McDuffie Sr > >Jeff- > >The real answer would have been for him to move to the input frequency >of 146.535, since that is a nationally recognized simplex channel, and >operate there. > >Gary Hmmm. This wouldn't be deliberate interference, would it? ...phil /kd8uoy ------------------------------ Date: 17 Sep 94 00:37:24 GMT From: news-mail-gateway@ucsd.edu Subject: (Getting long) Re: A Repeater on 147.555?!? To: info-hams@ucsd.edu Seems like there could be a relatively simple technological solution to this problem.....remember back in the early days of repeaters that 146.94 was a simplex frequency before it was a repeater output frequency??? As repeaters were developed, the solution to the problem of the repeater causing interference to simplex users was a "guard receiver" on the repeater. This additional receiver was tuned to the repeater *output* frequency and the repeater control logic set up in such a way that the repeater transmitter was inhibited if the squelch on the "guard receiver" was open--indicating activity on the channel. When this activity ceased, the repeater transmitter was again enabled, and normal repeater operation could resume. The guard receiver had to be co-located at the repeater site, of course, so that it could hear far-away stations on the repeater output channel. Perhaps this is not a total cure-all, but it would at least enable the repeater to co-exist on a simplex channel without causing interference to simplex users--with the drawback that repeater users would have to wait for the channel activity to drop before their signals on the input could bring up the repeater transmitter. Before rigorous bandplans were adopted guard receivers were much more common than they are today, but were installed to comply with FCC regs which at that time required that you not intentionally clobber another QSO on a given channel. Since repeater operation and "automatic control" have become recognized by the FCC, I suppose repeaters now have the right to come up on any channel they want at any time they want. Seems like the repeater coordinator(s) should have required the new repeater to utilize a guard receiver, especially since it is in violation of the bandplan by its use of simplex frequencies. Of course it's easier to QSY rather than fight, but I wouldn't take this lying down if I were so unfortunate as to live in Southern Calif!!!! (big smiley!) Last time I visited W6 it was very difficult to find an empty simplex channel, and of course now it's worse! Herb, WL7BIL jsamo@acad1.alaska.edu ------------------------------ Date: Thu, 15 Sep 1994 17:45:13 EDT From: psinntp!arrl.org!usenet@uunet.uu.net Subject: ARLD057 DX news To: info-hams@ucsd.edu SB DX @ ARL $ARLD057 ARLD057 DX news ZCZC AE55 QST de W1AW DX Bulletin 57 ARLD057 ------------------------------ Date: 16 Sep 94 19:55:00 GMT From: news-mail-gateway@ucsd.edu Subject: CO0FRC To: info-hams@ucsd.edu John, W3GOI, asked about a QSL route for CO0FRC. See either July or August (I'm not sure which one) CQ Magazine in the VHF column. A feature article about the operation, pictures, and QSL route was included. 73, Joe - K2YJL - VK2EJA ------------------------------ Date: Sun, 11 Sep 1994 02:43:55 GMT From: agate!iat.holonet.net!pcappbbs!dale.piedfort@ames.arpa Subject: Coax Fittings To: info-hams@ucsd.edu 9913 is great coax if you are going to use it in straight runs, it will not take undo flexing such as being used on a rotor though. And one of the drawbacks of 9913 it is subject to contamination because of the air dielectric. Better coax for your use would be Times Micro Wave LMR400 which uses standard UHF Connectors (PL259) or Comet 5D-FB, which can be purchased from any quality Amateur Radio Store. Check your Handbook and look at the loss factors on coax such as RG8X RG58AU and even the loss in RG213 or RG8. I use 9913 on my vertical installations, but would never consider it for a turnable beam antenna. If your Radio store doesnt carry LMR400 or the Comet 5D-FB you can call NCG Inc. in Anaheim, California 1-714-630-4541 (Comet Importer) and they will be happy to point you in the right direction. Or you can call Talley Communications in Santa Fe Springs, Calif (dont Have Number) and they would be able to ship you LMR400. One point the Comet Coax does require special connectors. Hope this helps. Dale KB7UB dale.piedfort@pcappbbs.com ------------------------------ Date: 16 Sep 1994 10:03:46 -0700 From: ihnp4.ucsd.edu!dog.ee.lbl.gov!overload.lbl.gov!agate!barrnet.net!nntp.crl.com!crl4.crl.com!not-for-mail@network.ucsd.edu Subject: FT-1000 Controller To: info-hams@ucsd.edu In article <1994Sep15.195315.26816@falcon.rd.ray.com>, cole@falcon.rd.ray.com (Brad Cole) wrote: > Where can I find a circuit that interfaces the Yaesu FT-1000 > to the RS-232 port on my computer? Also, what (good) software > is available to perform logging, monitoring packet dx spots, > and controlling the FT-1000 and the PK-232? I know that Yaesu > sells interfacing hardware. The Yaesu CAT System Interface is "FIF-232C". J-COM / Ramsey also sells an RS-232 interface. Their TC-Y1 will interface with the FT-1000, and comes with a disk full of software. I believe MFJ has a similar product to the J-COM / Ramsey version. If you are a homebrewer, the MAX232 chip and a resistor may be helpful. There is much less controller software written for Yaesu than for ICOM or Kenwood. I was unable to find a package that met my needs, so I wrote my own. Lou ------------------------------------------------------------------------ ------------------------Usual Disclaimers Apply------------------------- Internet: lgenco@crl.com Lou.Genco@LChance.sat.tx.us Ham Radio Packet: N5SGL @ K3WGF.#SAT.TX.USA tcp/ip: n5sgl@sat.ampr.org ------------------------------------------------------------------------ ------------------------------ Date: 16 Sep 1994 21:48:29 GMT From: convex!cs.utexas.edu!math.ohio-state.edu!howland.reston.ans.net!news.cac.psu.edu!news.pop.psu.edu!psuvax1!news.cc.swarthmore.edu!netnews.upenn.edu!news.amherst.edu!news.@darwin.sura.net Subject: FT-1000 Controller To: info-hams@ucsd.edu Lou Genco (lgenco@crl.com) wrote: : In article <1994Sep15.195315.26816@falcon.rd.ray.com>, : cole@falcon.rd.ray.com (Brad Cole) wrote: : > Where can I find a circuit that interfaces the Yaesu FT-1000 : > to the RS-232 port on my computer? Also, what (good) software : > is available to perform logging, monitoring packet dx spots, : > and controlling the FT-1000 and the PK-232? I know that Yaesu : > sells interfacing hardware. : : The Yaesu CAT System Interface is "FIF-232C". : : J-COM / Ramsey also sells an RS-232 interface. Their TC-Y1 will : interface with the FT-1000, and comes with a disk full of software. : : If you are a homebrewer, the MAX232 chip and a resistor may be : helpful. If it would help any, here is a interface for the Kenwood TS-850S. The idea is probably almost exactly teh same for the Yeasu. The idea being the radio outputs 5v levels and you need to convert this to the +-12V levels RS-232 uses. Thats all. I have not yet built this, but will be building a derivation of it in the future. This might be a spring board for you to work off of. As far as I can tell, the circuit is sound yet its up to the builder to verify this- although I've been told that this works well, so good luck. Note: Kenwood happens to implement a asserted low output (where you give a ground signal to represent a 1) thus the 7404 inverter. BTW, the circuit is really inexpensive. You can buy the MAX-232 IC for about $4-6 from Digi-Key although they have a minimum order... you might be able to find somewhere else that would sell you just one. Good Luck! ----------------------------------------------------------------------------- *** Homebrew Interface Schematic by IW3FQG *** +5V <-----------o------------------o----+ C = 10uF | +| | IC1 = 7404 | C | = | | IC2 = MAX232 | +-+-+ | 14 | 2 | 16| T TXD +----------+ +------------+ RXD R 2 <------| 1 2 |-------|11 14|----------------> 3 A RXD | I | | I | TXD R N 3 <------| 4 C 3 |-------|12 C 13|----------------> 2 S S CTS | 1 | | 2 | CTS C 4 <------| 9 5 |-------| 9 7|----------------> 5 2 E RTS | | | | RTS 3 I 5 <------| 6 8 |-------|10 8|----------------> 4 2 V +----------+ | 4|------+ E |7 +--|1 3 6 15 5|-+ | +-> 7 C R 1 <--+ | +| +------------+ | +| | O | ///// C | = | | +| | | | = | C | M ///// +-+-+ | | = | | | +-+-+ /// P | | +-+-+ | | | O +----+ C | | +----+ R /////// T 1990 IW3FQG Following parts obtained from JDR Microdevices, San Jose,Ca. 800-538-5000 IC1------7404 Hex Inverter (14pin IC socket pt# 14PIN ST) IC2------MAX232CPE Dual RS232 trans/rec (16pin IC socket pt# 16PIN ST) C--------10uf Tantalum caps The 6-pin DIN plug for the transciever connection is avalible from Radio Shack...cat# 276-020. As well as the 25 or 9 pin connector for the comm port. The +5 volts can be easily obtained using a 9v battery and a 5v fixed voltage regulator IC (R.S. cat# 276-1770) _______ | v.reg | | | | | |_______| | | | ___________| | |____________ +5 volts>>>> +| | ----- | 9 volt --- | bat. ----- | --- | - |_____________| | //////// The following is a the pin out difference between a 25 pin and a 9 pin AT serial connector RS232 SIGNAL PC-AT (9pin) 2 txd 3 3 rxd 2 4 rts 7 5 cts 8 6 dsr 6 (not used in interface) 7 gnd 5 8 car det 1 (not used in interface) 20 dtr 4 (not used in interface) 22 ring ind 9 (not used in interface) --------------------------------------------------------------------------- 73, -- Vince Hadley | KA7GVQ | hadleyv@bones.et.byu.edu | ------------------------------ Date: 12 Sep 1994 13:38:09 GMT From: agate!doc.ic.ac.uk!clss3.bangor.ac.uk!clss1!bss014@ames.arpa Subject: GB2VK..Special Event To: info-hams@ucsd.edu GB2VK On Sept 22nd 1994 the Dragon Amateur Radio Club (North Wales) will be operating GB2VK to commemorate the 76th anniversary of the first direct wireless message between UK and Australia.This was sent from the Marconi Company station at Waunfawr near Caernarfon,North Wales to Wahroonga,NSW. The station which will be on air from 0001-2359Z will be set up in the original station buildings at Waunfawr and will operate simultaneously on SSB and CW.Target freqs are: CW........14.020 SSB.......14.170 21.020 21.170 plus local 80/40m activity (10m if open..) The above freqs will be +/- QRM but will depend on conditions.It is hoped to run a packet station on site and to post operating freqs on the DX Cluster network. We hope to contact VK2WAH at the Aussie end at some time during the day but any/everyone is invited to call in; a special QSL is being issued.Please give us a call...the old building is cold and drafty so we will need plenty of activity to keep the spirits up! CUL.....Stewart Rolfe GW0ETF ------------------------------ Date: 14 Sep 1994 10:06:46 -0700 From: murky.apple.com!mumbo.apple.com!gallant.apple.com!apple.com!apple.com!not-for-mail@decwrl.dec.com Subject: HPM Lesson? To: info-hams@ucsd.edu Hans Brakob <71111.260@CompuServe.COM> writes: >After 16 hours of operation I have 2142 QSO's on a single band/mode. >"Annualizing" that to 24 hours you get over 3200 QSO's. In a 24-hour >SweepStakes I'd be in the top-ten box with about half that number of >Q's. Hans, the bands (at least 20m, where all my /125 contacts came) didn't feel as crowded as during a SS. Your experiece probably comes from the fact that you are one of the few (relative) "rare" ones. During SS, you wouldn't get such a pileup as signing K0HB/125; there are more stations issuing CQs during an SS to spread the QSO load. If we rack up the total contacts for everyone participating on SS and on the /125 event, I'll wager that the SS would overwhelm the /125 event. BTW, thanks for the K0HB/125 contact, Hans (1656z, 09/03). Only time one is glad to contact V.D. :-). 73, Kok Chen, AA6TY kchen@apple.com Apple Computer, Inc. ------------------------------ Date: Fri, 16 Sep 1994 23:13:07 GMT From: ihnp4.ucsd.edu!munnari.oz.au!yoyo.aarnet.edu.au!yarrina.connect.com.au!news.uwa.edu.au!harbinger.cc.monash.edu.au!news.cs.su.oz.au!metro!ipso!rwc@network.ucsd.edu Subject: IPS Daily Report - 16 September 94 To: info-hams@ucsd.edu SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT ISSUED AT 16/2330Z SEPTEMBER 1994 BY IPS RADIO AND SPACE SERVICES FROM THE REGIONAL WARNING CENTRE (RWC), SYDNEY. SUMMARY FOR 16 SEPTEMBER AND FORECAST FOR 17 SEPTEMBER - 19 SEPTEMBER ----------------------------------------------------------- 1A. SOLAR SUMMARY Activity: very low Flares: none. Observed 10.7 cm flux/Equivalent Sunspot Number : 71/6 GOES satellite data for 15 Sep Daily Proton Fluence >1 MeV: 2.9E+06 Daily Proton Fluence >10 MeV: 3.9E+04 Daily Electron Fluence >2 MeV: 6.3E+08 X-ray background: LT Fluence (flux accumulation over 24hrs)/ cm2-ster-day. 1B. SOLAR FORECAST 17 Sep 18 Sep 19 Sep Activity Very low Very low Very low Fadeouts None expected None expected None expected Forecast 10.7 cm flux/Equivalent Sunspot Number for 17 Sep: 70/5 ----------------------------------------------------------- 2A. MAGNETIC SUMMARY Geomagnetic field at Learmonth: quiet to unsettled Estimated Indices : A K Observed A Index 15 Sep Learmonth 9 3322 2222 Fredericksburg 10 7 Planetary 10 7 Observed Kp for 15 Sep: 2122 2223 2B. MAGNETIC FORECAST DATE Ap CONDITIONS 17 Sep 6 Quiet to unsettled 18 Sep 6 Quiet 19 Sep 6 Quiet ----------------------------------------------------------- 3A. GLOBAL HF PROPAGATION SUMMARY LATITUDE BAND DATE LOW MIDDLE HIGH 16 Sep normal normal normal PCA Event : None. 3B. GLOBAL HF PROPAGATION FORECAST LATITUDE BAND DATE LOW MIDDLE HIGH 17 Sep normal normal normal 18 Sep normal normal normal 19 Sep normal normal normal ----------------------------------------------------------- 4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY Observed DATE T-index MUFs at Sydney 16 Sep 27 about 10% above predicted monthly values Predicted Monthly T-index for September: 20 4B. AUSTRALIAN REGION IONOSPHERIC FORECAST DATE T-index MUFs 17 Sep 25 0 to 10% above predicted monthly values 18 Sep 25 Near predicted monthly values 19 Sep 25 Near predicted monthly values -- IPS Regional Warning Centre, Sydney |IPS Radio and Space Services RWC Duty Forecaster tel: +61 2 4148329 |PO Box 5606 Recorded Message tel: +61 2 4148330 |West Chatswood NSW 2057 email: rwc@ips.oz.au fax: +61 2 4148331 |AUSTRALIA ------------------------------ Date: 14 Sep 1994 14:52:03 -0700 From: ihnp4.ucsd.edu!swrinde!howland.reston.ans.net!europa.eng.gtefsd.com!library.ucla.edu!csulb.edu!paris.ics.uci.edu!not-for-mail@network.ucsd.edu Subject: Looking for the best DSP filter for HF? To: info-hams@ucsd.edu In ericr@vcd.hp.com (Eric Ross) writes: >Don't underestimate the effectiveness of the much less expensive Radio >Shack DSP (about $80). I am extremely happy with it. You can give it >a try and if you don't like it, return it, but maybe save enough >money for an IF filter. It is my understanding that the Radio Shack DSP filter does not have a noise reduction mode (the noise reduction is merely a product of the narrow bandwidth) - and that noise reduction is the main feature that attracts me to an SSB DSP filter....which is really a shame, since the Radio Shack filter is so inexpensive. (In fact, the Radio Shack filter has a nonadjustable center frequency for the CW bandwidth that is far higher than where I want to listen, too bad again....wish they were a bit more flexible in their designs :-) . If all this is wrong (a la QST info), I am off to buy one. Clark WA3JPG ------------------------------ Date: Fri, 16 Sep 1994 10:48:43 -0800 From: cronkite.cisco.com!sdarragh-mac.cisco.com!user@decwrl.dec.com Subject: My license is granted To: info-hams@ucsd.edu My license was granted on September 9th. I am now KE6MGW. -- ------------------------------------------------------------------------------ Scott R. Darragh (KE6MGW) On Planet Reebok, you punish their 3535 Garrett Dr rusher, stick the receivers, Sant Clara, Ca 95054 intimidate their quarterback, and (408)-526-7173 walk off the field with the cheerleaders. ------------------------------------------------------------------------------ ------------------------------ Date: 16 Sep 94 21:20:53 GMT From: news-mail-gateway@ucsd.edu Subject: Radio History To: info-hams@ucsd.edu I'm looking for internet resources that describe the history of radio -- technological development, inventions, inventors, etc. (This is radio in general -- not the history of amateur radio, as such.) Any advice, pointers, ftp locations to suggest, etc., would be appreciated. Paul Marsh N0ZAU pmarsh@metro.mccneb.edu ------------------------------ Date: 16 Sep 94 19:51:00 GMT From: news-mail-gateway@ucsd.edu Subject: SAREX Update & Keps 9/16 To: info-hams@ucsd.edu SB SAREX @ AMSAT $STS-64.022 SAREX Update & Keps 9/16 19:30 UTC Silver Spring, MD September 16, 1994 at 19:30 UTC No SAREX Packet Operations The SAREX team at mission control learned today that we will not be able to turn on the SAREX packet system during the STS-64 mission. The Shuttle Crew hasworked hard to conserve power to allow the Shuttle to stay up an additional, tenth day. However, the power budget is such that SAREX packet could not be energized through the Orbiter power without impacting primary payload operations. We will, however, continue voice operations using battery power when the shuttle crew is available. The SAREX team has had many reports of voice QSOs with the shuttle crew on this flight. Orbital Elements The following represents the latest Keplerian Elements as generated by Ron Parise, WA4SIR, at the Goddard Space Flight Center and checked by Gil Carman, WA5NOM, at the Johnson Space Center. STS-64 1 23251U 94059A 94259.27989906 0.00005269 10869-4 78459-5 0 268 2 23251 57.0062 194.7051 0009503 278.7996 81.2013 16.11955829 1033 Satellite: STS-64 Catalog number: 23251 Epoch time: 94259.27989906 (16 SEP 94 06:43:03.28 UTC) Element set: GSFC-026 Inclination: 57.0062 deg RA of node: 194.7051 deg Space Shuttle Flight STS-64 Eccentricity: 0.0009503 Keplerian Elements Arg of perigee: 278.7996 deg Mean anomaly: 81.2013 deg Mean motion: 16.11955829 rev/day Semi-major Axis: 6619.6156 Km Decay rate: 0.53E-04 rev/day*2 Apogee Alt: 247.52 Km Epoch rev: 103 Perigee Alt: 234.94 Km NOTE - This element set is based on NORAD element set # 026. The spacecraft has been propagated to the next ascending node, and the orbit number has been adjusted to bring it into agreement with the NASA numbering convention. Submitted by Frank H. Bauer, KA3HDO for the SAREX Working Group /EX ------------------------------ Date: 15 Sep 1994 18:06:28 -0400 From: psinntp!JH.Org!not-for-mail@uunet.uu.net Subject: Western CT. Hamfest 18 SEP 94 To: info-hams@ucsd.edu Does anyone know if there will be VE testing there? Tommy the Tourist (Anon User) writes: >Admission is $4.00, kids under 12 free. ARRL sanctioned; Handicapped >Access; Door prizes; Refreshments; Ample parking; Rain or shine. >Talk-in will be on the 147.12 Danbury repeater, +600, PL 141.3. >Come one, come all, enjoy some fun, and maybe get a great bargain! >See you at the Western CT Hamfest. >73 DE N1QNK >Jim -- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% ss@jh.org Steve Steinberg Amateur Radio Callsign: _______ ------------------------------ Date: (null) From: (null) ------------------------------ End of Info-Hams Digest V94 #1031 ******************************